it's cal performances third annual fall free for all. arts and entertainment reporter don sanchez has a preview. ♪ >> the music can be hot. ♪ >> or classical. or dance rooted in thousands of years in tradition. cal performances fall free for all defies classification. the auditorium, and casual spots on the cal campus come alive with performances that define the wealth of bay area culture. >> not only the breadth of cultural offerings there are and the breadth and depth, but also the quality. >> this is a dance from northern india. typical of what you will find in the fall free for all on sunday. showing the diversity of cultures in the bay area. the esteemed indian dance group is rehearsing, hard slamming the ground with their feet. those bells each weigh four pounds. the costume is heavy, too. >> it combines the physicality, the musicality, and the spirituality, as well, and also math because of the rhythms we do. it's highly improvisational. organic math, we like to call it. it's a form where they all come together to develop. >>